Unable to get 2x wx7100 to crossfire in a workstation setup that had no issues with 2x w7100. GPU-z says crossfire available, and the crimson driver sees both cards. Have swapped the cards and both work but no crossfire. Driving 3 4 k monitors using eyefinity. Thought maybe crossfire was enabled by default but there was no performance gain when the second card was added. Anyone else been able to do 2x wx7100 crossfire with the new driver?